I'm having a similar problem. I can reproduce the problem at will with firefox. When I go to my company's external email site (Microsoft OWA), if I click on the link for a large email (2mb), the email partially loads and then gnome crashes.
Xorg.0.log.old has this: Backtrace: 0: /usr/bin/X(xf86SigHandler+0x7e) [0x80c780e] 1: [0xb7fd8420] Fatal server error: Caught signal 11. Server aborting syslog has this: May 11 13:14:25 Luther kernel: [ 2045.094801] Xorg[5067]: segfault at fcfefd03 eip b7dbfff9 esp bfa754fc error 4 May 11 13:14:25 Luther console-kit-daemon[5424]: WARNING: Unable to activate console: No such device or address May 11 13:14:25 Luther kernel: [ 2045.147949] compiz.real[6221]: segfault at 02800001 eip 08055a80 esp bfcb4b20 error 4 May 11 13:14:25 Luther gdm[5063]: WARNING: gdm_slave_xioerror_handler: Fatal X error - Restarting :0 May 11 13:14:36 Luther pulseaudio[6694]: pid.c: Stale PID file, overwriting. May 11 13:14:37 Luther kernel: [ 2056.316377] VMBlock warning: DentryOpRevalidate: invalid args from kernel May 11 13:14:37 Luther kernel: [ 2056.316511] VMBlock warning: DentryOpRevalidate: invalid args from kernel May 11 13:14:37 Luther kernel: [ 2056.337973] VMBlock warning: DentryOpRevalidate: invalid args from kernel May 11 13:14:37 Luther kernel: [ 2056.338374] VMBlock warning: DentryOpRevalidate: invalid args from kernel May 11 13:14:37 Luther kernel: [ 2056.364073] VMBlock warning: DentryOpRevalidate: invalid args from kernel May 11 13:14:37 Luther kernel: [ 2056.364377] VMBlock warning: DentryOpRevalidate: invalid args from kernel May 11 13:14:37 Luther hcid[5693]: Default passkey agent (:1.47, /org/bluez/passkey) registered May 11 13:14:37 Luther hcid[5693]: Default authorization agent (:1.47, /org/bluez/auth) registered May 11 13:14:37 Luther kernel: [ 2056.500886] VMBlock warning: DentryOpRevalidate: invalid args from kernel May 11 13:14:37 Luther kernel: [ 2056.501198] VMBlock warning: DentryOpRevalidate: invalid args from kernel May 11 13:14:38 Luther NetworkManager: <info> Updating allowed wireless network lists. May 11 13:14:38 Luther NetworkManager: <WARN> nm_dbus_get_networks_cb(): error received: org.freedesktop.NetworkManagerInfo.NoNetworks - There are no wireless networks stored.. Here is my xorg.conf ** Attachment added: "xorg.conf" http://launchpadlibrarian.net/14452755/xorg.conf -- gdm_slave_xioerror_handler: Fatal X error https://bugs.launchpad.net/bugs/152648 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs